(19)
(11) EP 4 275 490 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.12.2023 Bulletin 2023/51

(43) Date of publication A2:
15.11.2023 Bulletin 2023/46

(21) Application number: 23195835.6

(22) Date of filing: 11.09.2018
(51) International Patent Classification (IPC): 
A01D 41/12(2006.01)
A01M 21/02(2006.01)
 A01F 12/40(2006.01)
(52) Cooperative Patent Classification (CPC):
A01F 12/40; A01D 41/1243; A01M 21/02
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 11.09.2017 US 201715701096
01.02.2018 US 201862763112 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
18854892.9 / 3681262

(71) Applicant: Tritana Intellectual Property Ltd.
Saskatoon SK S7K 3J7 (CA)

(72) Inventor:
  • Mayerle, Dean
    Saskatoon, S7K 3J7 (CA)

(74) Representative: Franke, Dirk 
Franke & Partner Patent- und Rechtsanwälte Widenmayerstraße 25
80538 München
80538 München (DE)

   


(54) WEED SEED DESTRUCTION


(57) Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back and forth between the rotor and the stator to provide a plurality of impacts. The seeds are carried axially of the rotor by a controlled airstream so that they move to an axial discharge location where a discharge fan is mounted. The angle of the discharge around the rotor axis can be changed to direct the seeds to the side of the combine away from a straw chopper, towards the guide fins of the tailboard of the chopper, or into the housing of the straw chopper.







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Search report